In high temperature zone, as the temperature rising wood bending strength was reduced, and compression strength perpendicular to grain had gained in strength.
在高温区域，随着温度的升高，抗弯强度被明显削弱，而横纹抗压强度则得到增强。
Under the action of a same heat source, when the direction of grain is perpendicular to the direction of the action, the ignition delay time is the longest.
同样外部热源作用下，木材内部木纹方向垂直于作用方向时，着火延迟时间最长；
In the depth direction, the initiated ESFCs grew perpendicular to the loading axle first and then to be inclined to the direction perpendicular to the material columnar grain structure formation.
深度方向，裂纹初始与加载方向垂直，之后倾向于与柱状晶生长方向垂直。
In the depth direction, the initiated ESFCs grew perpendicular to the loading axle first and then to be inclined to the direction perpendicular to the material columnar grain structure formation.
深度方向，裂纹初始与加载方向垂直，之后倾向于与柱状晶生长方向垂直。
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